OBJECTIVETo investigate the therapeutic efficacy of anticoagulation(AC) and its combination with catheter-directed thrombolysis(CDT) for deep venous thrombosis of lower extremities.

METHODSOne hundred and thirty-nine patients with deep venous thrombosis of early lower extremities treated in our hospital from May 2011 to September 2013 were selected and randomly divided into the AC group(n= 66) and CDT+AC group(n= 73). The thrombolytic effects, adverse reactions, post-thrombotic syndrome (PTS) and quality of life were evaluated.

RESULTSThere were no serious adverse events during treatment and after treatment in the 2 groups. Hematomas in 2 cases and gross hematuria in 3 cases were observed in the CDT+AC group. The gums bleed or gross hematuria in 3 cases were observed in the AC group. Compared with the AC group, the number of grade I thrombolysis in CDT+AC group decreased significantly (60.61% vs 9.59%)(P< 0.05), and the number of grade III thrombolysis increased significantly(7.57% vs 49.31%)(P< 0.05). During follow-up, the incidence of PTS in both groups showed increase year by year, and none of the patients had severe PTS. The incidence PTS in CDT+AC group at 12 months and 18 months were lower than those of AC group(17.81% vs 33.33%, 24.66% vs 43.94%)(P< 0.05). Compared with the AC group, the scores of physiological role and vitality in CDT+AC group at 6 months, 12 months and 18 months were higher (P< 0.05).

CONCLUSIONCatheter-directed thrombolysis combined with AC therapy can promote the mitigation of clinical symptoms in patients with DVT of lower extremities and is beneficial to promoting the life quality of patients.